A Network Parameter Errors Identification Method Considering Large Error Point Based on Robust State Estimation and Its Real Application

doi:10.11930/j.issn.1004-9649.2016.02.114.04

Abstract

Abstract: Network parameter errors can significantly deteriorate state estimation results in power system. Firstly, a robust state estimation model with ability to avoid bad data influence automatically is investigated. Then, a practical suspicious parameters identification method is developed. The method is based on measurement residuals and mismatch between states on two branch terminals. Finally, a variable step integration algorithm is used to estimate identified suspicious parameters. The proposed method has been deployed in several provincial power control centers. Numerical results of a real provincial power system are given to demonstrate its correctness and effectiveness.

Key words: network parameter, identification and estimation, power system, state estimation

CLC Number:

TM744

JIN Xuecheng, ZOU Genhua, ZHANG Hao, SUN Yue, CUI Bo. A Network Parameter Errors Identification Method Considering Large Error Point Based on Robust State Estimation and Its Real Application[J]. Electric Power, 2016, 49(2): 114-117.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2016.02.114.04

https://www.electricpower.com.cn/EN/Y2016/V49/I2/114

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